Portland police released the artist’s sketch in hopes of catching the man, according to City Spokeswoman Nicole Clegg.

The suspect, believed to be in his 50s, sat in the 30-year-old victim’s car while waiting for her to return from a jog along the Back Cove.

Once she entered the vehicle, he began assaulting her in the Preble Street parking lot. The woman eventually blared her horn and the suspect fled the scene.

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The suspect is a heavyset, balding male who may have tattoos on both forearms and does not have good hygiene.

Anyone who witnessed the attack or saw the man is asked to call 874-8575. Mobile phone users can text the word “GOTCHA” plus their message to 274637 to leave an anonymous tip, or go to www.portland-police.com and click on “Submit an Anonymous Crime Tip.”

To reach a sexual assault advocate, call the Statewide Sexual Assault Crisis and Support Line at 800-871-7741, TTY 888-458-5599. This free and confidential 24-hour service is accessible from anywhere in Maine. Calls are automatically routed to the closest sexual violence service provider.